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TOLL TMI3278 600kHz 18V 3A Synchronous COT Step-Down Converter with SOT563 Package
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pTOLL TMI3278 — synchronous step-down (buck) converter, SOT563, 18 V./p
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TOLL TMI3278 600kHz 18V 3A Synchronous COT Step-Down Converter with SOT563 Package
The TMI3278 from TOLL acts as a synchronous step-down (buck) converter, comes in SOT563.
Technical Data
| Parameter | Rating |
|---|---|
| Parameter | Value |
| Manufacturer | TOLL Microelectronics (Tuoer Micro) |
| Part number | TMI3278 |
| Device type | Synchronous step-down (buck) converter |
| Product line | Power Management ICs |
| Input voltage | 4.5V to 18V |
| Output current | Up to 3A |
| Switching frequency | 600kHz |
| Package | SOT563 |
| Datasheet | TMI3278_DS_EN_V1.0 |
Practical Notes
- Check the reference design before finalising external components.
- Thermal pad layout drives continuous current capability.
- Confirm the suffix — package and grade change between variants.
- Datasheet limits apply at the stated test conditions; derate for your ambient.
- Protection thresholds are set by external resistors in most designs.
Application Scenarios
Common installation contexts include:
- EV
- DC-DC
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